From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel Mrzyglod Subject: [PATCH] eal: fix unchecked return value from library Date: Thu, 21 Apr 2016 13:56:57 +0200 Message-ID: <1461239817-96357-1-git-send-email-danielx.t.mrzyglod@intel.com> Cc: dev@dpdk.org, Daniel Mrzyglod To: anatoly.burakov@intel.com Return-path: Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by dpdk.org (Postfix) with ESMTP id 66A602C15 for ; Thu, 21 Apr 2016 12:54:37 +0200 (CEST) List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Fix issue reported by Coverity. Coverity ID 13194 The function returns a value that indicates an error condition. If this is not checked, the error condition may not be handled correctly. In pci_vfio_mp_sync_thread: Value returned from a library function is not checked for errors before being used. This value may indicate an error condition. Fixes: 2f4adfad0a69 ("vfio: add multiprocess support") Signed-off-by: Daniel Mrzyglod --- lib/librte_eal/linuxapp/eal/eal_pci_vfio_mp_sync.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/lib/librte_eal/linuxapp/eal/eal_pci_vfio_mp_sync.c b/lib/librte_eal/linuxapp/eal/eal_pci_vfio_mp_sync.c index d9188fd..2b136fc 100644 --- a/lib/librte_eal/linuxapp/eal/eal_pci_vfio_mp_sync.c +++ b/lib/librte_eal/linuxapp/eal/eal_pci_vfio_mp_sync.c @@ -287,7 +287,10 @@ pci_vfio_mp_sync_thread(void __rte_unused * arg) struct linger l; l.l_onoff = 1; l.l_linger = 60; - setsockopt(conn_sock, SOL_SOCKET, SO_LINGER, &l, sizeof(l)); + + if (setsockopt(conn_sock, SOL_SOCKET, SO_LINGER, &l, sizeof(l)) < 0) + RTE_LOG(ERR, EAL, "Cannot set SO_LINGER option " + "on listen socket (%s)\n", strerror(errno)); ret = vfio_mp_sync_receive_request(conn_sock); -- 2.5.5